984704980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{79}}^2$

素因数の和:211

約数の個数: 144

約数和(自身を含む): 2548627200

約数和(自身を除く): 1563922220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 79, 92, 98, 115, 140, 158, 161, 196, 230, 245, 316, 322, 343, 395, 460, 490, 553, 644, 686, 790, 805, 980, 1106, 1127, 1372, 1580, 1610, 1715, 1817, 2212, 2254, 2765, 3220, 3430, 3634, 3871, 4508, 5530, 5635, 6241, 6860, 7268, 7742, 7889, 9085, 11060, 11270, 12482, 12719, 15484, 15778, 18170, 19355, 22540, 24964, 25438, 27097, 31205, 31556, 36340, 38710, 39445, 43687, 50876, 54194, 62410, 63595, 77420, 78890, 87374, 89033, 108388, 124820, 127190, 135485, 143543, 157780, 174748, 178066, 218435, 254380, 270970, 287086, 305809, 356132, 436870, 445165, 541940, 574172, 611618, 623231, 717715, 873740, 890330, 1004801, 1223236, 1246462, 1435430, 1529045, 1780660, 2009602, 2140663, 2492924, 2870860, 3058090, 3116155, 4019204, 4281326, 5024005, 6116180, 6232310, 7033607, 8562652, 10048010, 10703315, 12464620, 14067214, 20096020, 21406630, 28134428, 35168035, 42813260, 49235249, 70336070, 98470498, 140672140, 196940996, 246176245, 492352490, 984704980]

約数ペア:

[(1, 984704980), (2, 492352490), (4, 246176245), (5, 196940996), (7, 140672140), (10, 98470498), (14, 70336070), (20, 49235249), (23, 42813260), (28, 35168035), (35, 28134428), (46, 21406630), (49, 20096020), (70, 14067214), (79, 12464620), (92, 10703315), (98, 10048010), (115, 8562652), (140, 7033607), (158, 6232310), (161, 6116180), (196, 5024005), (230, 4281326), (245, 4019204), (316, 3116155), (322, 3058090), (343, 2870860), (395, 2492924), (460, 2140663), (490, 2009602), (553, 1780660), (644, 1529045), (686, 1435430), (790, 1246462), (805, 1223236), (980, 1004801), (1106, 890330), (1127, 873740), (1372, 717715), (1580, 623231), (1610, 611618), (1715, 574172), (1817, 541940), (2212, 445165), (2254, 436870), (2765, 356132), (3220, 305809), (3430, 287086), (3634, 270970), (3871, 254380), (4508, 218435), (5530, 178066), (5635, 174748), (6241, 157780), (6860, 143543), (7268, 135485), (7742, 127190), (7889, 124820), (9085, 108388), (11060, 89033), (11270, 87374), (12482, 78890), (12719, 77420), (15484, 63595), (15778, 62410), (18170, 54194), (19355, 50876), (22540, 43687), (24964, 39445), (25438, 38710), (27097, 36340), (31205, 31556)]